Oil & Gas

Pump and compressor bases  →  DIN 25201 Wedge Lock Washers

Pressure pulsation from reciprocating compressors and plunger pumps is classic low-frequency, high-amplitude vibration and readily causes thread self-loosening - and loosening on this equipment can lead to media leakage. Wedge lock washers provide stable locking under pressure pulsation. Dacromet is recommended: no hydrogen embrittlement risk, suitable for high strength grades.

High-temperature steam piping and refining units  →  DIN 6796 Belleville Washers / DIN 7967

There is one critical selection point here: the service temperature limit for nylon-insert lock nuts is around 120 C, above which the nylon softens and fails. Refining units can exceed 300 C, so DIN 7967 all-metal lock nuts must be used instead. Belleville washers compensate preload decay caused by high-temperature creep.

Flanges and pipework connections  →  NFE25-511 M Belleville Washers / DIN 6798A Tooth Lock

Flanges need high preload plus elastic compensation. NFE25-511 carries higher load than DIN 6796 and suits high-pressure pipe flanges; tooth lock washers are used on branch pipes and fittings with stronger vibration.

Valve assemblies and instrument lines  →  DIN 6798J Internal Tooth / Starlock Washers

Valve assemblies, instruments and control components have many small fixing points. Starlock and shaft retaining washers are push-on designs that assemble without turning, suited to the confined interiors of instrument panels and valve assemblies.

Custom equipment stamped parts  →  Custom Stamped Parts

Explosion-proof enclosure connectors, pipe clamps and brackets can be produced to drawing.